air pollution

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    U.S. Air Pollution Rates Down, but Vary by Demographics

    U.S. Air Pollution Rates Down, but Vary by Demographics

    Air pollution emissions in the United States have decreased considerably since the Clean Air Act of 1970 was enacted, but the benefits have not always been equally felt. According to a new study by researchers at Columbia University Mailman School of Public Health, the amount of the improvements is largely dependent on demographics, with socioeconomic […]

    Wildfires Increasing in Size and Quantity in Eastern U.S., Study Finds

    Wildfires Increasing in Size and Quantity in Eastern U.S., Study Finds

    While major wildfires in the U.S. have typically afflicted the west coast in recent years, a a new study based on data from over 30 years has found an increase in the size and frequency of wildfires on the opposite side of the country. The study, published in Geophysical Research Letters, reviewed large wildfires, over […]

    5 Cities Leading the Charge Toward Electric Bus Transportation

    5 Cities Leading the Charge Toward Electric Bus Transportation

    In metropolitan areas around the globe, public transportation is going greener. Many cities are working towards eliminating greenhouse gas emissions by transitioning away from fossil fuels — which are responsible for roughly 75% of climate warming GHGs — to renewable energy, and electrifying bus fleets is a priority.  Diesel exhaust from fossil fuel-powered buses contributes […]

    New Delhi Considers Cloud Seeding to Combat Smog

    New Delhi Considers Cloud Seeding to Combat Smog

    New Delhi’s environment minister Gopal Rai met with the Indian Institute of Technology Kanpur (IIT Kanpur) Wednesday to talk about the possibility of cloud seeding to induce rain in the capital city, which has been plagued by dangerous smog, reported Business Today. Pending approval of IIT Kanpur’s proposal from the Supreme Court, the cloud seeding […]